With global estimates of 51 million children already classified as overweight or obese before they begin school, prevention and intervention research needs to target pre-school children. Obesogenic behaviours formed during these early years, including physical and sedentary habits, have been found to persist throughout a child’s life. To limit the progression of excessive weight gain, healthy weight-related behaviours need to be developed in young children while they are receptive to change and before obesity-promoting behaviours become engrained. Given that parents are the primary social influence of children’s health behaviours, understanding how they might influence the development of physical and sedentary behaviours in pre-schoolers will inform the development of prevention strategies. A review by Mitchell et al. (2012) identified 12 parental correlates of pre-schooler’s physical activity levels, albeit only five of these had been explored rigorously. This presentation will outline the findings of an update of the Mitchell et al. (2012) systematic review, extending child outcomes to include sedentary behaviours as well. The aim of this updated systematic review, that followed PRISMA guidelines, was to identify and evaluate the strength of parental correlates of physical activity and sedentary behaviour in children aged between 2-7 years. Studies that measured the relationship between parental factors and child physical activity or sedentary behaviour levels were included. MEDLINE Complete, PsycINFO, CINAHL Complete, Academic Search Complete, SPORTDiscus and Embase were systematically searched and limited to peer-reviewed, English articles published between January 2005 and August 2015. Identifying parental factors influencing child physical activity and/or sedentary behaviour is necessary to inform prevention and intervention programs to address overweight and obesity in young children.